Apparently Men Are From Mars, Women Are From Venus is the best selling non-fiction hardcover book of all-time (excepting the Bible and Koran) with over 7 million copies in circulation. So naturally, Hollywood is going to try and make some cash off of the title by turning it into a movie. Much like the vomitrocious He's Just Not That Into You, the loathsome What To Expect When You're Expecting and the cringe-y Think Like A Man, the flick will most likely attempt to cram fictional characters into a non-fiction concept, and then be aggressively marketed to women. Fun!